A detailed study of solar absorption cooling has been initiated at European Solar Engineering School, Högskolan Dalarna for the first time. As the initial step, in this work the various absorption technologies are reviewed. A TRNSYS model has been built to size the solar circuit and to find the optimum values for hot water temperature, cooling water temperature and chilled water set point temperatures; to get higher COP and solar faction values. A 650 m2 commercial office building (Bank) is used with TYPE 56 to estimate the cooling load. The cooling load is estimated as approximately 100 KW and Yazaki WFC-30 commercial chiller is selected and the same data is used with the TRNSYS Type 680 (Single effect hot-water fired absorption chiller) in sizing the solar circuit. The optimum value of solar collector area is found as 500 m2 flat plate collector, 6 m3 Storage volume and 80oCof hot water, 15oC Chilled water set point. Same results are achieved with a 250 m2 Evaluated tube collector under the same conditions.